Valve for flush-tanks.



M. BEHRER.

VALVE FOR FLUSH TANKS.

APPLICATION men MAR. 15.1912.

Patented Dec. 26, 1916.

m Inventor: I C

A; Atty,

"MARTIN Banana, or eunnus, new YORK;

VALVE ron FLUSH-TANKS.

eoaeea.

, To all whom it may concern Be it known that I, MARTIN Barman, a citizen of the UnitedStates, residing at Queens, in the borough of Queens, city of New York, county of Queens, and State of New York, have invented certain new and useful Improvements in Valves for Flush- Tanks, of which the following is a specification, referencebeing had therein to the accompanying drawings, which form a part thereof. a

My invention relates. to valves for flush tanks, and more particularly to a type of valve for use in siphon tanks. A tank of this character should possess the characteristics of being so constructedas to prevent object of the invention is to provide a valve of this character wherein a weighted valve block is used to control'the j et for initiating the actuation of the siphon, which valve block will have lineal movement toward and from its seat, the valve in its movement being guided and controlled in a manner to insure the proper seating of the block while at the same time preventing the displacement of the block through any excessive movement thereof due to momentum acquired through excessive stresses uponthe pullchain. I V Y f A further object is to provide a guide mechanism which will permit the valve block to be lifted from its seat and removed from the tank at any time without a necessity for the employment of a y tools or the removal of any parts other than the valve block itself. p v j v.

A still further object is to provide a. valve of this character wherein any corrosion due to the character of the water used in the tank will not interfere with the free movement,

and accurate seating, of the valve block.

A still further object is to provide avalve mechanism wherein in case of leakage at the jet valve, due to wear of the packing, the pacln'ng may be quickly removed and replaced by new packing, without the aid of tools or machinery of any-kind.

Specification of Letters Patent.

Patented Dec. as, rare,

Application nleanarcniaw a seaa esam;

A still further object is to provide a valve wherein the packing of the valve block will be so constructed and arranged as to permit the accurate seating of the valve irrespective of irregularities in the valve seat, and wherein the arrangement of this packing will be such as to cause the weight of the water in the tank to aid in the seating of the valve block.

A still further object is to provide an intel-changeable valve block packing of the character immediately above referred to wherein the weight of the water, or the resistance to the movement of the valve block, will not displace the said packing. And a stillfurther object is to simplify the structure of the'valve in a manner to minimize likelihood of a loss of adjustment, or injury thereto under theordinary conditions of use.

The invention consists primarily in a valve for flush tanks, embodying therein a siphon tube, a flush pipe normally in communication therewith, a siphon jet lead discharging into said flush pipe below said siphon tube and across the outlet thereof, an elongated guide rod projecting axially of said siphon jet lead, a weighted valve block slidably mounted upon said guide rod, an elongated stem carried bysaid block and inclosing said rod, and means in conjunction with said stem for raising said valve block; and in such other novel features of construe tion and combination of parts as are hereinafter set forth and described, and more particularly pointed out in the claims hereto appended.

Referring to the drawings: Figure l is a sectional elevation of a flush tank embodying my valve mechanism; and Fig. 2 is an enlarged vertical section of the valve mechanism alone. j

Like letters refer to like parts in both of said views. i

In the embodiment of my invention shown in the drawings, a indicates an ordinary flush tank which is provided with an ordinary float inlet valve control mechanism and overflow pipe, not shown, andwith a pull cord mechanism 6. j

Mounted in the tank a is a siphon tube, one leg 0 of which opens into the tank and the other leg cl of which is mounted in one lead a of a three way casting 6, another lead e of which casting is in communication with the flush pipelf. The siphon tube thus normally communicates with the flush pipe f, the passage through the casting e being unobstructed. A suitable packing g is pro- 5 The casting e has a siphon jet lead 6 eX- tending at a curve from adjacent to the bottom of the tank a to a point abovethe lead 6 and across the lead 6, thus permitting the water admitted through the lead 0 to be projected across the lead 6 "and into the flush pipe f.

The upper face of the lead 6 has a valve seat It formed within its inlet, and permanently secured to the casting c is a vertical guide rod 21 projecting axially of the lead e and extending upwardly to a height above the greatest possibledisplacement of the valve mechanism under the'control of the pull chain mechanism 6.

Slid ably mounted upon the guide rod 71 is a weighted valve block 7a, which has'permanently secured thereto tubular stem m, the bore of which is of a diameter slightly larger than that of the rod i to afford play between these parts for the purpose of permitting that slight lateral movementof the valve block 7c desirable to secure the proper seating thereof under all conditions ofuse.

The pull cord mechanism Z) is attached tov 30 the stem at by means of the opening rm therein, the free end of said stem being closed in themanner shown in the drawings to prevent the percolation of any water through this tube and the consequent accidental initiation of the siphon action to dis-' charge the water in the tank.

Adjacentto the lower face of the valve block 70 said block is channeled out to form oppositely disposed shoulders 70 and 72 and seated in this channel is a detachable rubber packing ring a having a reduced portion a adjacent to the shoulder 71: and an enlarged portion a adjacent to the shoulder 70 this portion being beveled at as shown to conform to the valve seat It and afiford affieXible edge adapted to be forced, by the weight of the water within the tank, into the desired intimate engagement with said seat. The arrangement of the shoulders it" and 71: is such as to prevent the displacement of this packing rim through the resistance encountered thereby when the valve is raised, and the flexibilityof this ring connection with the enlarged" bore of the stem m'jpermits the valve to automatically find seat even though the seat itself be slightly irregular or if there be a slight obstruction thereon. This packingring also makes the operation of the device noiseless.

By makingthe valve stem at of solid stock drilled, leakage at the top of the stem is positively prevented without the aid of packing of any kind which might deteriorate from continued use or be displaced through the stresses upon the stem, thus avoiding possibility of the development of leaks through this stem from continuous use.

The. operation of the herein described valve is substantially as follows :--W'hen it is desiredto flush a closet, it is merely necessary to givethe chain pull 6 one pull, this movement serving to raise the valve block 70,

As the pull chain is released, the weight of V the block k will cause'it'to seat bygmvay, the waterabout the leade' andwithin the hollow stem m affording ,suflicient resistance to the descent of said block to insure an easy seating thereof. The resistance withinthe stem mfisnier'ely incidental to the use of the apparatus. Asthe valve" lcrises and falls, its movem'entjis guided by the'rod which occupies a' fixed position in relation to the inlet of thelead e and thus limits the move ment of the blockina mannerto insure its proper reseating as it descends through gravity. This'guide rod being elongated and seated within the stem m, sufficient movement of the valve block :70, under the chain pull, to permit it'to escape from said guide rod is prevented through the extended bearing between it and the stem m).

The packing ring a being of fiexible'rubher, will conformtothe valve seat h under the weight of the valveblock, although if any obstructions should rest upon said seat or any irregularities be developed therein, the flexible edge of said ring would be forced to seat by the weight of the waterin the tankf Furthermore, the bevel of the edge of this ring will tend to displace any solid particles whiclrniay rest upon said seat. l In caserepairs in the valve are required, it is merely necessary for 'tlie pluinber to reach into the tank a, take hold of the stem m and remove the en'tire valve from the guide rod a, slip the packing ring a from the channel between the shoulders la "and 76 and substitute 'a new ring therefor. To replace the valve it is merely necessary to ,in sert the guide rode intlie bearing of the valve and its stem, and permit 's'aid block to drop into place. It will be" observed that thereare no obstructions whioh wou ld prevent the free removal 'of this valve, and that repairs may be eiiected without the use of tools ofany kind. This feature is very important jasjwhere it is necessary to re move a part of the valve mechanism which is attached by means 'of screws, the corrosion which occurs upon thescrevvs and about the parts carrying same is so great that after continued use it is sometimes impossible to start the screws. Furthermore, the plumber is working at a disadvantage; often in an awkward position with little room, so that the handling of tools is rendered difficult, and as a consequence, when repairs are needed it is necessary to take down the entire tank in order to give the mechanic an opportunity to work freely upon the valve.

The channel between the shoulders 7c and k is of a depth suflicientto afiord enough holding surface for the ring a to prevent the displacement thereof through the resistance of the water within the tank, the flexible edge of said ring yielding to this resistance before sufficient power can be developedto remove the ring. Furthermore, the overhung top of the valve block is minimizes the resistance to the movement of this ring.

In the construction herein described, I have reduced the number of parts incorporated in the mechanism to a minimum, and these parts are so associated as to preclude their disarrangement through the ordinary conditions of use.

It is not my intention to limit the invention to the precise details of construction shown in the accompanying drawings, it

being apparent that such may be varied without departing from the spirit and scope of the invention.

Having described my invention, what 1 claim as new and desire to have protected by Letters Patent, is

1. A valve for flush tanks, embodying therein a siphon tube, a flush pipe normally in communication therewith, a siphon jet lead discharging into said flush pipe below said siphon tube and across the outlet thereof, said lead havingaseat about the inlet thereof, the space above said siphon jet lead and about said seat being entirely unobstructed, an elongated guide rod secured at the bottom of and projecting axially of said siphon jet lead, a weighted valve block slidably mounted upon said guide rod, an elongated stem carried by said block and inclosing said rod, and means in conjunction with said stem for'raising said valve block.

2. A valve for flush tanks embodying therein a siphon tube, a flush pipe normally in communication therewith, a siphon jet lead discharging into said flush pipe below said siphon tube and across the outlet thereof, said lead having a seat about the inlet thereof, the space above said siphon jet lead and about said seat being entirely unobstructed, an elongated guide rod se' cured at the bottom of and projecting axially of said siphon jet lead, a weighted valve block slidably mounted upon said guide rod, a detachable packing ring carried by said block and adapted to engage the seat about said siphon jet lead, an elongated stem carried by said block and inclosing said rod, and means in conjunction with said stem for raising said valve block.

8. A valve for flush tanks, embodying therein a siphon tube, a three-way fitting, one lead of which is in communication with said tube, a flush pipe in communication with another lead of said fitting, an elongated guide rod secured at the bottom of and projecting axially of the third lead of said fitting, the inlet of said lead being unobstructed above and about the edge there of, aweighted valve block slidably mounted upon said guide rod, an elongated stem carried by said block and inclosing said rod, and means in conjunction with said stem for raising said valve block, whereby water may be admitted to said fitting in a manner to cause it to flow across the lead thereof communicating with said siphon tube and to discharge into said lead in communication with said flush pipe.

4. A valve for flush tanks embodying therein a siphon tube, a flush pipe normally in communication therewith, a siphon jet lead discharging into said flush pipe below said siphon tube and across the outlet thereof, said lead having a seat formed about the inlet thereof, the space above said siphon jet lead and about said seat being entirely unobstructed, an elongated guide rod securedat the bottom of and projecting axially of said siphon lead, a weighted valve block slidably mounted upon said guide rod, said block having a channel in the sides thereof forming oppositely disposed shoulders, and a detachable annular packing seated in said channel, and having an overhung rim, an elongated stem carried by said block and having a loose sliding fit with said rod whereby slight movement of said block is afforded to permit said packing to automatically seat itself, and means in conjunction with said stem for raising said block.

In witness whereof, I have hereunto afiixed my signature, in the presence of two subscribing witnesses, this 5 day of March,

' MARTIN BEHRER; Witnesses:

JOHN Mnnrz,

HAROLD OARMAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

- Washington, D. G. 

